25402111001 has 8 divisors (see below), whose sum is σ = 25792972800. Its totient is φ = 25013881728.

The previous prime is 25402110977. The next prime is 25402111019. The reversal of 25402111001 is 10011120452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25402111001 - 2¹⁰ = 25402109977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25402111061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638681 + ... + 677286.

It is an arithmetic number, because the mean of its divisors is an integer number (3224121600).

Almost surely, 2^25402111001 is an apocalyptic number.

It is an amenable number.

25402111001 is a deficient number, since it is larger than the sum of its proper divisors (390861799).

25402111001 is a wasteful number, since it uses less digits than its factorization.

25402111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316263.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 25402111001 its reverse (10011120452), we get a palindrome (35413231453).

The spelling of 25402111001 in words is "twenty-five billion, four hundred two million, one hundred eleven thousand, one".